Data / Highest daily Air Quality Index (US EPA) / Concordia Parish

Highest daily Air Quality Index (US EPA) in Concordia Parish

Highest daily Air Quality Index (US EPA) in Concordia Parish was 86 in 2006, according to the U.S. Environmental Protection Agency. That is down 9 from 2005.

2006, index86
Change on 2005-9
Series high1102002
Series low782004

Next release: Tuesday, 13 July 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

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Highest daily Air Quality Index (US EPA) in Concordia Parish, 1999 to 2006

70809010011019992001200320061999: 93 index2000: 86 index2001: 85 index2002: 110 index2003: 85 index2004: 78 index2005: 95 index2006: 86 index7080901001101999200220061999: 93 index2000: 86 index2001: 85 index2002: 110 index2003: 85 index2004: 78 index2005: 95 index2006: 86 index
index. Source: EPA, EPA AirData annual AQI by county: highest daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 8 values
Periodindex
200686
200595
200478
200385
2002110
200185
200086
199993

Concordia Parish compared with nearby places

Ascension Parish: 169 indexBossier Parish: 159 indexCaddo Parish: 158 indexCalcasieu Parish: 177 indexConcordia Parish: 86 indexEast Baton Rouge Parish: 190 indexIberville Parish: 172 indexJefferson Parish: 174 indexLafayette Parish: 169 indexLafourche Parish: 182 indexLivingston Parish: 172 indexOrleans Parish: 113 indexOuachita Parish: 126 indexPointe Coupee Parish: 195 indexRapides Parish: 90 indexSt. Bernard Parish: 119 indexSt. Charles Parish: 159 indexSt. James Parish: 154 indexSt. John the Baptist Parish: 164 indexSt. Tammany Parish: 95 indexTangipahoa Parish: 90 indexTerrebonne Parish: 163 indexWest Baton Rouge Parish: 192 indexWinn Parish: 87 index
  • Under 110
  • 110 to 160
  • 160 to 170
  • 170 to 180
  • 180 and over
  • No data
Highest daily Air Quality Index (US EPA), 2006, index. Concordia Parish is outlined. Same source and period for every area shown. Source: U.S. Environmental Protection Agency. Boundaries: U.S. Census Bureau cartographic boundary files.

Rankings

Definition

Highest daily Air Quality Index (AQI) value recorded in a US county during the year, from the EPA AirData annual summaries. Values above 500 are beyond the AQI scale and are published as EPA computes them.

A single day decides the value, so one wildfire or dust event can set it. Dust from the dry Owens Lake bed puts Inyo and Mono counties in California in the thousands. United States counties with air quality monitors only, about 1,000 of some 3,100 in recent years; a county without monitors has no value. The number of days with an AQI differs between counties because some monitors run only in the ozone season.

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How to cite

U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: highest daily AQI. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Environmental Protection Agency. (2026). EPA AirData annual AQI by county: highest daily AQI (Highest daily Air Quality Index (US EPA), Concordia Parish, 1999 to 2006) [Data set]. Retrieved October 12, 2026, from https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual

MLA 9

EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Concordia Parish, 1999 to 2006. U.S. Environmental Protection Agency, 13 July 2026, https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Invokely, https://invokely.ai/en/highest-daily-air-quality-index/concordia-parish-louisiana. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Environmental Protection Agency. 2026. EPA AirData annual AQI by county: highest daily AQI. Highest daily Air Quality Index (US EPA), Concordia Parish, 1999 to 2006. Dataset. Accessed October 12, 2026. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Also distributed by Invokely, https://invokely.ai/en/highest-daily-air-quality-index/concordia-parish-louisiana.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Concordia Parish, 1999 to 2006 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/highest-daily-air-quality-index/concordia-parish-louisiana (Accessed: 12 October 2026).

BibTeX
@misc{environmental_highest_daily_air_quality_2006,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Concordia Parish, 1999 to 2006}},
  year = {2026},
  howpublished = {Data set},
  url = {https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/concordia-parish-louisiana. Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: highest daily AQI. https://aqs.epa.gov/aqsweb/airdata/download\_files.html\#Annual. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Environmental Protection Agency
TI  - EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Concordia Parish, 1999 to 2006
PY  - 2026
DA  - 2026/07/13
PB  - U.S. Environmental Protection Agency
DB  - Invokely
UR  - https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual
L2  - https://invokely.ai/en/highest-daily-air-quality-index/concordia-parish-louisiana
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/concordia-parish-louisiana.
N1  - Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: highest daily AQI. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.
ER  -
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Questions

What is the highest daily Air Quality Index (US EPA) in Concordia Parish?

Highest daily Air Quality Index (US EPA) in Concordia Parish was 86 in 2006, according to the U.S. Environmental Protection Agency. That is down 9 from 2005.

Where does this figure come from?

U.S. Environmental Protection Agency. EPA AirData annual AQI by county: highest daily AQI. Retrieved by Invokely on 2026-10-12.

What was the highest highest daily Air Quality Index (US EPA) in Concordia Parish?

110 in 2002, the highest value since 1999 in this series.

Related statistics for Concordia Parish

All statistics for Concordia Parish | Concordia Parish in figures